Pshaw1, interj.
(shaw), interj. Pish! pooh!—an exclamation used as an expression of contempt, disdain, or dislike. [Written also psha.]
2 entries under this word
Pshaw
Pshaw2, v. i.
v. i. To express disgust or contemptuous disapprobation, as by uttering the exclamation “pshaw!”
The goodman used regularly to frown and pshaw whenever this topic was touched upon. W. Scott.